Year: 2008

iPod video projector

iPod video projector

Instructables has another great how-to on building a small iPod video projector. I am not sure about the brightness of the final product, but it does not require any other light-source besides the the iPod itself. The information about the lens system is a good read, and may be useful in other projects. – Link

Diamagnetic levitation on a jar lid

Diamagnetic levitation on a jar lid

From the MAKE Flickr pool Member Cmorris posted these images of an elegantly simple levitation setup – Folded business card behind magnets provides nice contrast. The pyrolytic graphite square floats about 2mm above the magnets, you can easily slide a business card all the way underneath without disturbing it. – Link For those interested in […]

Made in Japan Vol. 4

Made in Japan Vol. 4

This week: Women who make heart-shaped cucumbers, the hacks of Carioca, a QR code magazine, Japan’s world of competitive rubber band shooting, extreme styrofoam PC case mods, and the makeshift mobile restaurants of Japan. Heart-Shaped Cucumbers by the Heartstick Group – While many people may be familiar with the square melons of Japan, here are […]

Point polygon intersection in SQL

update: As readers noted, it’s not the 0 degrees longitude that’s the problem, it’s at 180 degrees where you could encounter issues. I’ve also escaped the gt and lt symbols. Sorry about that. I spent the weekend participating in the F1 Website Challenge, a coding marathon in which competing teams each produce a mythical man-month’s […]